Effects of Prismatic Spectacle Lenses on Symptoms of Dizziness, Headache and Anxiety as Caused by Vertical Heterophoria

Vertical Heterophoria Clinical Trial

Official title: Effects of Vertical Prism on the Symptoms of Dizziness, Headache and Anxiety as Caused by Vertical Heterophoria: A Randomized, Double-blinded, Placebo-controlled, Cross-over Study

Status Terminated

Clinical Trial Summary

The purpose of this study is to demonstrate whether, in patients diagnosed with Vertical Heterophoria, the symptoms of dizziness, headache and / or anxiety are reduced or eliminated when a kind of correction called vertical prism is added to the patient's normal eye glass prescription.

The experiment will involve giving the patient two pairs of glasses (one pair containing the baseline prescription with vertical prism (Standard Treatment Glasses) and the other pair containing the baseline prescription but without vertical prism (Placebo Glasses)) to demonstrate which pair of glasses is most effective in reducing the symptoms of dizziness, headache and / or anxiety in these patients.

Clinical Trial Description

n/a

Related Conditions & MeSH terms

• Binocular Dysfunction
• Dizziness
• Headache
• Strabismus
• Vertical Heterophoria
• Vertigo
• Vision Disparity
• Vision, Binocular

• NCT number: NCT00785135
• Study type: Interventional
• Source: Vision Specialists of Birmingham
• Status: Terminated
• Phase: N/A
• Start date: November 2008
• Completion date: November 2015